virgl: reduce some limits for now
virgl: reduce some limits for now

These need to be passed from the host in caps structure if they
are larger, this fixes a bunch of tests on Intel hw, that I'd
put the limits too high for.

Cc: "11.2 12.0" <59f39c0db42d4479a46b02d4d2bc11120e37bb44@lists.freedesktop.org>
Signed-off-by: Dave Airlie <f2295d84e358395675bc8031be58672073ae065e@redhat.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler